Cathy is a food preserving expert and author of Mrs. Wheelbarrow's Practical Pantry: Recipes and Techniques for Year-Round Preserving.

added over 6 years ago

MrsL, when canning, especially a thick filling, you want to remove any air bubbles before processing. This is best accomplished with aa air bubble remover - available for a dollar or two in the canning section - run around the inside of the jar. It's recommended that you don't use metal (can chip the glass,) so I recommend a plastic knife or wooden chopstick.